Potato masher



FIG. 1 is a perspective view of the potato masher showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a side elevation thereof; and

FIG. 6 is a front elevation thereof. 

The ornamental design for a potato masher, substantially as is shown. 